Real-Time QoS Control for Service Orchestration

Joost Bosman, Hans Leo van den Berg, Rob van der Mei

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    5 Citations (Scopus)
    43 Downloads (Pure)


    Service orchestration has become the predominant paradigm that enables businesses to combine and integrate services offered by third parties. For the commercial viability of orchestrated services, it is crucial that they are offered at sharp price-quality ratios. A complicating factor is that many attractive third-party services often show highly variable service quality. This raises the need for mechanisms that promptly adapt the orchestration to changes in the quality delivered by third party services. In this paper, we propose a real-time QoS control mechanism that dynamically optimizes service orchestration in real time by learning and adapting to changes in third party service response time behaviors. Our approach combines the power of learning and adaptation with the power of dynamic programming. The re¬sults show that real-time service re-compositions lead to dramatic savings of cost, while meeting the service quality requirements of the end-users. The challenge here is to respond to signi?cant response-time changes in a timely manner, while not wasting CPU cycles on unnecessary orchestration updates. Experimental results performed in a test-lab environment demonstrate that a few orchestration updates are suf?cient to achieve this.
    Original languageUndefined
    Title of host publicationProceedings of the 27th International Teletraffic Congress (ITC 2015)
    Place of PublicationUSA
    Number of pages7
    ISBN (Print)978-1-4673-8422-3
    Publication statusPublished - 8 Sept 2015
    Event27th International Teletraffic Congress 2015: Traffic, Performance and Big Data - Ghent, Belgium
    Duration: 8 Sept 201510 Sept 2015
    Conference number: 27

    Publication series

    PublisherIEEE Computer Society


    Conference27th International Teletraffic Congress 2015
    Abbreviated titleITC 2015
    Internet address


    • EWI-26918
    • METIS-316874
    • IR-100230

    Cite this